Ancient Climate Crisis Nearly Erased Humanity

21 min

Explore how extreme climate shifts 900,000 years ago—featuring prolonged cold periods and devastating droughts across Africa and Eurasia—nearly wiped out our ancestors, reducing human population by 98.7% for over 100,000 years.

Ancient Climate Crisis Nearly Erased Humanity

How This Personalized Podcast Was Made

This podcast was created using BeFreed's AI, based on selected books, the creator's learning goals, and their preferred tone.

Who We Are and How We Got Here
A Brief History of Everyone Who Ever Lived
All Tomorrows
The Story of the Human Body
Transcendence
Eve
star
Input question

What are the potential causes of the severe human DNA bottleneck that occurred 930,000 to 813,000 years ago

Podcast Style
Lenaplay
Milesplay

From Columbia University alumni built in San Francisco

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"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

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"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum
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"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
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17

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore
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"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

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"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn
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"Makes me feel smarter every time before going to work"

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"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA
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117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw
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"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum
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comments
12
likes
108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
platform
comments
254
likes
17

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore
platform
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"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful
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4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

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"It is great for me to learn something from the book without reading it."

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"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn
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37
likes
483

"Makes me feel smarter every time before going to work"

@Cashflowbubu
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